Fixup for r340342: Avoid Block_release'ing the block since we're no longer making a copy.
Fixup for r340342: Avoid Block_release'ing the block since we're no longer making a copy.

rdar://problem/42242579



git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@340347 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt